(19)

(11)

EP 1 504 513 A1

(12)

(43) Date of publication: 09.02.2005 Bulletin 2005/06 (21) Application number: 03723251.9 (22) Date of filing: 08.05.2003

(51) International Patent Classification (IPC)7: H02J 1/10, H02M 7/17 (86) International application number: PCT/JP2003/005739 (87) International publication number: WO 2003/096510 (20.11.2003 Gazette 2003/47)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR (30) Priority: 13.05.2002 JP 2002137510 (71) Applicant: Nitta Corporation Osaka-shi,Osaka 556-0022 (JP)	(72) Inventor: WANG, Guo-Hua,c/o NITTA CORPORATION Nara Plant Yamatokohriyama-shi, Nara 639-1032 (JP) (74) Representative: Sajda, Wolf E., Dipl.-Phys. et al MEISSNER, BOLTE & PARTNERPostfach 86 06 24 81633 München 81633 München (DE)